Description: 
Currently there is no easy way to find the tag handler code from the tag 
node.  The user must manually sift through the tag handler classes that are
generated in the mounted filesystem.

Suggested Fix: 
Add a "View Tag Handler" menu item on the tag's context menu. This would open 
tag handler code (and show the tag handler class node in the explorer window).

Evaluation: 
This could be done if the tag handler has already been generated. 
If it hasn't then I guess we could call the generate tag handler action
for the selected node. 

The code to determine where the tag handler is located is already present
in the generate code action. 

A comment.